Some products on the market need to be coated with a bright silver layer, but many people may be curious, how to plate a layer of silver on the workpiece? Usually the most contacted are titanium plating, chrome plating, aluminum plating, but silver plating is still relatively small, after all, it is a heavy metal. The following Xiaobian Huicheng Vacuum will introduce the method of silver coating on the pvd coating machine in detail, and I hope it will be helpful to you:
How does a pvd coating machine get a bright silver layer? To get a bright silver coating, there are the following methods:
1) Brush light. After ordinary silver plating, although the surface of the part is uniformly coated and crystallized, it is not bright. The bright silver layer can only be obtained by brushing the surface of the part with a copper wire brush or copper wire wheel.
2) Pulse silver plating. Compared with ordinary silver plating, the obtained coating is not only finely crystalline and dense, but also has better dispersion ability and deep plating ability than ordinary silver plating, and can also be used without brightener. In the case of a glossy silver-plated layer can also be obtained.
3) Bright silver plating. Whether it is cyanide silver plating or cyanide-free silver plating, as long as appropriate additives and brighteners are added, not only a full-bright silver coating is obtained, but also the coating is more detailed, the reflection performance is good, and the dispersing ability and deep plating ability of the plating solution are also improved. . By adding additives, coatings with different properties can also be obtained, such as semi-bright coatings, full-bright coatings, improving the weldability of the coatings, and increasing the hardness and wear resistance of the coatings.
The pvd coating machine can not only coat silver, but also coat many other films, which depends on the customer's needs and where his workpiece is located. The effect is different, and the coating layer is also different.
